News 2011 Aprilia RS4 125 | First Ride

2011 Aprilia RS4 125 | First Ride

Aprilia Motorcycles

Greetings from the ACR Vairano test circuit just south of Milan, Italy. I’ve just finished testing the all-new, 2011 Aprilia RS4 125, which is Aprilia’s first step away from the 2-strokes that made them famous.

Aprilia will still sell the much sought after RS 125 2-stroke alongside its new 4-stroke 125 but it’s obvious that it will be phased out at some point. Despite being restricted to 15 horsepower and 11Nm of torque, the small, single-cylinder race bike provided plenty of fun on the circuit.

I must admit that because I’m always testing the latest superbikes, the RS4 125 felt a bit on the docile side at first. But in terms of 125cc 4-strokes, the RS4 125 is pretty much at the top end of affairs.

Most of the power is up above 10k rpm and that’s where I desperately tried to stay most of the time. The brakes are great and consists of one 300mm disc with a 4-pot radial caliper attached.

The lightness can be felt both on the brakes and whilst tackling one the tight chicanes at Vairano. I could flick the RS4 through them like a bicycle, that’s how light it feels.

I had fun doing slipstream racing passes on my colleagues and some of them returned the favor as well. Keeping the momentum is alpha omega on this bike.

The Aprilia RS4 125 is a great bike for 16-year old youngsters, and also for those that want a cheap but grown up looking light weight bike.

It’ll do 121km/h on the speedo, as this was the absolute maximum we could see on this circuit. Stay tuned to UltimateMotorCycling.com for a full review.

Prices: £3,999 in the UK ($6500 USD), and €4,300-4,800 around Europe.

Ron Lieback
Ron Lieback
One of the few moto journalists based on the East Coast, Ron Lieback joined the motorcycle industry as a freelancer in 2007, and is currently Online Editor at Ultimate Motorcycling.

2020 Benelli Leoncino 800 First Look: Italian Design, Made In China

Truly a modern classic, the all-new 2020 Benelli Leoncino 800 stretches the Leoncino line upward. Featuring a new 754cc DOHC parallel-twin motor in a...

2020 Husqvarna FC 450 Rockstar Edition First Look (12 Fast Facts)

With less than a month to go before the opening of the 2020 Monster Energy Supercross season, the 2020 Husqvarna FC 450 Rockstar Edition...

James Bond Triumph: Tiger 900 and Scrambler 1200 in New Movie

James Bond movies have a long history of motorcycles participating in the spy's cinematic adventures around the world. However, it did take Agent 007...

Aprilia RS 250 SP: Road Racers For Young Riders

Aprilia has been conspicuously absent from the middleweight and lightweight Grand Prix classes since the elimination of two-strokes. However, Aprilia has been active in...

Lieback’s Lounge – Turkey, Bikes & the Status Quo

The Rocket 3, LiveWire and RS660 are three 2020 models that I embrace - these rides go against the status quo of modern motorcycle design.

Complete Book of Classic and Modern Triumph Motorcycles: Ian Falloon (Review)

Here's a new review from our Rider’s Library - The Complete Book of Classic and Modern Triumph Motorcycles by the iconic motorcycle historian Ian Falloon.